Implement unified modern design system

✨ Features:
- Created comprehensive design system with sophisticated color palette
- Green-focused brand colors for forest/nature theme
- Unified typography with Inter and Playfair Display fonts
- Consistent glassmorphism effects and modern UI patterns

🎨 Design Updates:
- All pages now use consistent forest gradient headers
- Modernized login page with elegant glassmorphism container
- Enhanced form page with improved GPS button styling
- Updated map page with animated wave header effects
- Added emoji icons for better visual hierarchy

📱 Mobile Improvements:
- Fixed GPS button color consistency in mobile mode
- Enhanced touch-friendly interactions
- Improved responsive layouts across all pages
- Better button sizing and spacing on mobile devices

🔧 Technical:
- Centralized CSS design system in design-system.css
- CSS custom properties for consistent theming
- Improved accessibility with focus states
- Optimized animations and transitions

The UI now has a cohesive, modern, and elegant appearance while maintaining
the minimal aesthetic with sophisticated design touches.

static/css/design-system.css

@@ -0,0 +1,787 @@
+/* TreeTrack Design System v2.0 */
+/* Modern, minimal, and elegant design system for TreeTrack */
+
+@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@400;500;600;700&display=swap');
+
+:root {
+    /* Primary Brand Colors - Sophisticated green palette */
+    --primary-50: #f0fdf5;
+    --primary-100: #dcfce8;
+    --primary-200: #bbf7d1;
+    --primary-300: #86efac;
+    --primary-400: #4ade80;
+    --primary-500: #22c55e;
+    --primary-600: #16a34a;
+    --primary-700: #15803d;
+    --primary-800: #166534;
+    --primary-900: #14532d;
+    
+    /* Secondary Brand Colors - Elegant blue accent */
+    --secondary-50: #eff6ff;
+    --secondary-100: #dbeafe;
+    --secondary-200: #bfdbfe;
+    --secondary-300: #93c5fd;
+    --secondary-400: #60a5fa;
+    --secondary-500: #3b82f6;
+    --secondary-600: #2563eb;
+    --secondary-700: #1d4ed8;
+    --secondary-800: #1e40af;
+    --secondary-900: #1e3a8a;
+    
+    /* Neutral Colors - Sophisticated grayscale */
+    --gray-50: #fafafa;
+    --gray-100: #f5f5f5;
+    --gray-200: #e5e5e5;
+    --gray-300: #d4d4d4;
+    --gray-400: #a3a3a3;
+    --gray-500: #737373;
+    --gray-600: #525252;
+    --gray-700: #404040;
+    --gray-800: #262626;
+    --gray-900: #171717;
+    --gray-950: #0a0a0a;
+    
+    /* Status Colors */
+    --success-50: #f0fdf4;
+    --success-500: #22c55e;
+    --success-600: #16a34a;
+    --success-700: #15803d;
+    
+    --warning-50: #fffbeb;
+    --warning-500: #f59e0b;
+    --warning-600: #d97706;
+    --warning-700: #b45309;
+    
+    --error-50: #fef2f2;
+    --error-500: #ef4444;
+    --error-600: #dc2626;
+    --error-700: #b91c1c;
+    
+    --info-50: #eff6ff;
+    --info-500: #3b82f6;
+    --info-600: #2563eb;
+    --info-700: #1d4ed8;
+    
+    /* Spacing Scale */
+    --space-px: 1px;
+    --space-0: 0;
+    --space-1: 0.25rem;
+    --space-2: 0.5rem;
+    --space-3: 0.75rem;
+    --space-4: 1rem;
+    --space-5: 1.25rem;
+    --space-6: 1.5rem;
+    --space-7: 1.75rem;
+    --space-8: 2rem;
+    --space-10: 2.5rem;
+    --space-12: 3rem;
+    --space-16: 4rem;
+    --space-20: 5rem;
+    --space-24: 6rem;
+    --space-32: 8rem;
+    
+    /* Typography Scale */
+    --text-xs: 0.75rem;      /* 12px */
+    --text-sm: 0.875rem;     /* 14px */
+    --text-base: 1rem;       /* 16px */
+    --text-lg: 1.125rem;     /* 18px */
+    --text-xl: 1.25rem;      /* 20px */
+    --text-2xl: 1.5rem;      /* 24px */
+    --text-3xl: 1.875rem;    /* 30px */
+    --text-4xl: 2.25rem;     /* 36px */
+    --text-5xl: 3rem;        /* 48px */
+    --text-6xl: 3.75rem;     /* 60px */
+    
+    /* Line Heights */
+    --leading-none: 1;
+    --leading-tight: 1.25;
+    --leading-snug: 1.375;
+    --leading-normal: 1.5;
+    --leading-relaxed: 1.625;
+    --leading-loose: 2;
+    
+    /* Font Weights */
+    --font-light: 300;
+    --font-normal: 400;
+    --font-medium: 500;
+    --font-semibold: 600;
+    --font-bold: 700;
+    --font-extrabold: 800;
+    
+    /* Border Radius */
+    --radius-none: 0;
+    --radius-sm: 0.25rem;
+    --radius-md: 0.375rem;
+    --radius-lg: 0.5rem;
+    --radius-xl: 0.75rem;
+    --radius-2xl: 1rem;
+    --radius-3xl: 1.5rem;
+    --radius-full: 9999px;
+    
+    /* Shadows */
+    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
+    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
+    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
+    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
+    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
+    
+    /* Glassmorphism Effects */
+    --glass-bg: rgba(255, 255, 255, 0.85);
+    --glass-bg-dark: rgba(255, 255, 255, 0.1);
+    --glass-blur: blur(12px);
+    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
+    
+    /* Gradients */
+    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 50%, var(--primary-800) 100%);
+    --gradient-secondary: linear-gradient(135deg, var(--secondary-600) 0%, var(--secondary-700) 50%, var(--secondary-800) 100%);
+    --gradient-forest: linear-gradient(135deg, #134e4a 0%, #14532d 25%, #166534 50%, #15803d 75%, #16a34a 100%);
+    --gradient-sky: linear-gradient(135deg, #0c4a6e 0%, #1e40af 25%, #2563eb 50%, #3b82f6 75%, #60a5fa 100%);
+    --gradient-sunset: linear-gradient(135deg, #7c2d12 0%, #dc2626 25%, #f59e0b 50%, #fbbf24 75%, #fde047 100%);
+    
+    /* Transitions */
+    --transition-fast: 0.15s ease;
+    --transition-normal: 0.2s ease;
+    --transition-slow: 0.3s ease;
+    --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
+    
+    /* Z-Index Scale */
+    --z-dropdown: 1000;
+    --z-sticky: 1020;
+    --z-fixed: 1030;
+    --z-modal-backdrop: 1040;
+    --z-modal: 1050;
+    --z-popover: 1060;
+    --z-tooltip: 1070;
+    --z-toast: 1080;
+}
+
+/* Base Styles */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+::selection {
+    background: var(--primary-500);
+    color: white;
+}
+
+::-moz-selection {
+    background: var(--primary-500);
+    color: white;
+}
+
+html {
+    font-size: 16px;
+    scroll-behavior: smooth;
+}
+
+body {
+    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
+    font-feature-settings: 'cv11' 1, 'ss01' 1, 'kern' 1;
+    line-height: var(--leading-normal);
+    color: var(--gray-800);
+    background: var(--gray-50);
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    text-rendering: optimizeLegibility;
+}
+
+/* Typography */
+.font-display {
+    font-family: 'Playfair Display', serif;
+}
+
+.font-mono {
+    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
+    font-variant-numeric: tabular-nums;
+}
+
+/* Headings */
+h1, h2, h3, h4, h5, h6 {
+    font-weight: var(--font-semibold);
+    line-height: var(--leading-tight);
+    letter-spacing: -0.025em;
+    color: var(--gray-900);
+}
+
+h1 {
+    font-size: var(--text-4xl);
+    font-weight: var(--font-bold);
+}
+
+h2 {
+    font-size: var(--text-3xl);
+}
+
+h3 {
+    font-size: var(--text-2xl);
+}
+
+h4 {
+    font-size: var(--text-xl);
+}
+
+h5 {
+    font-size: var(--text-lg);
+}
+
+h6 {
+    font-size: var(--text-base);
+}
+
+/* Links */
+a {
+    color: var(--primary-600);
+    text-decoration: none;
+    transition: color var(--transition-fast);
+}
+
+a:hover {
+    color: var(--primary-700);
+}
+
+a:focus {
+    outline: 2px solid var(--primary-500);
+    outline-offset: 2px;
+}
+
+/* Layout Components */
+.container {
+    max-width: 1280px;
+    margin: 0 auto;
+    padding: 0 var(--space-4);
+}
+
+@media (min-width: 640px) {
+    .container {
+        padding: 0 var(--space-6);
+    }
+}
+
+@media (min-width: 1024px) {
+    .container {
+        padding: 0 var(--space-8);
+    }
+}
+
+/* Modern Header Component */
+.tt-header {
+    background: var(--gradient-forest);
+    color: white;
+    position: sticky;
+    top: 0;
+    z-index: var(--z-sticky);
+    backdrop-filter: var(--glass-blur);
+    border-bottom: var(--glass-border);
+    box-shadow: var(--shadow-lg);
+}
+
+.tt-header-content {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: var(--space-4) var(--space-6);
+    gap: var(--space-6);
+    flex-wrap: wrap;
+}
+
+.tt-header-brand {
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-1);
+}
+
+.tt-header-logo {
+    font-size: var(--text-2xl);
+    font-weight: var(--font-bold);
+    letter-spacing: -0.02em;
+    display: flex;
+    align-items: center;
+    gap: var(--space-2);
+}
+
+.tt-header-logo::before {
+    content: '🌳';
+    font-size: var(--text-3xl);
+}
+
+.tt-header-subtitle {
+    font-size: var(--text-sm);
+    opacity: 0.9;
+    font-weight: var(--font-normal);
+}
+
+.tt-header-actions {
+    display: flex;
+    align-items: center;
+    gap: var(--space-4);
+    flex-wrap: wrap;
+}
+
+/* User Info Component */
+.tt-user-info {
+    display: flex;
+    align-items: center;
+    gap: var(--space-3);
+    padding: var(--space-2) var(--space-4);
+    background: var(--glass-bg-dark);
+    border-radius: var(--radius-full);
+    border: var(--glass-border);
+    backdrop-filter: var(--glass-blur);
+}
+
+.tt-user-avatar {
+    width: 36px;
+    height: 36px;
+    border-radius: var(--radius-full);
+    background: var(--gradient-secondary);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-weight: var(--font-bold);
+    font-size: var(--text-sm);
+    color: white;
+    border: 2px solid rgba(255, 255, 255, 0.2);
+}
+
+.tt-user-details {
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-px);
+}
+
+.tt-user-name {
+    font-size: var(--text-sm);
+    font-weight: var(--font-semibold);
+    color: white;
+}
+
+.tt-user-role {
+    font-size: var(--text-xs);
+    opacity: 0.8;
+    text-transform: capitalize;
+}
+
+/* Button System */
+.tt-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--space-2);
+    padding: var(--space-3) var(--space-6);
+    font-size: var(--text-sm);
+    font-weight: var(--font-medium);
+    line-height: var(--leading-none);
+    border-radius: var(--radius-lg);
+    border: none;
+    cursor: pointer;
+    transition: all var(--transition-normal);
+    text-decoration: none;
+    outline: none;
+    position: relative;
+    overflow: hidden;
+    white-space: nowrap;
+    user-select: none;
+}
+
+.tt-btn:focus-visible {
+    outline: 2px solid var(--primary-500);
+    outline-offset: 2px;
+}
+
+.tt-btn:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+    pointer-events: none;
+}
+
+/* Button Variants */
+.tt-btn-primary {
+    background: var(--gradient-primary);
+    color: white;
+    box-shadow: var(--shadow-md);
+}
+
+.tt-btn-primary:hover {
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-lg);
+}
+
+.tt-btn-primary:active {
+    transform: translateY(0);
+}
+
+.tt-btn-secondary {
+    background: var(--glass-bg-dark);
+    color: white;
+    border: var(--glass-border);
+    backdrop-filter: var(--glass-blur);
+}
+
+.tt-btn-secondary:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateY(-1px);
+}
+
+.tt-btn-outline {
+    background: transparent;
+    color: var(--gray-700);
+    border: 1px solid var(--gray-300);
+}
+
+.tt-btn-outline:hover {
+    background: var(--gray-100);
+    border-color: var(--gray-400);
+    transform: translateY(-1px);
+}
+
+.tt-btn-ghost {
+    background: transparent;
+    color: var(--gray-600);
+}
+
+.tt-btn-ghost:hover {
+    background: var(--gray-100);
+    color: var(--gray-800);
+}
+
+/* Button Sizes */
+.tt-btn-xs {
+    padding: var(--space-1) var(--space-3);
+    font-size: var(--text-xs);
+}
+
+.tt-btn-sm {
+    padding: var(--space-2) var(--space-4);
+    font-size: var(--text-sm);
+}
+
+.tt-btn-lg {
+    padding: var(--space-4) var(--space-8);
+    font-size: var(--text-lg);
+    font-weight: var(--font-semibold);
+}
+
+.tt-btn-xl {
+    padding: var(--space-5) var(--space-10);
+    font-size: var(--text-xl);
+    font-weight: var(--font-semibold);
+}
+
+/* Form Components */
+.tt-form-group {
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-2);
+}
+
+.tt-form-label {
+    font-size: var(--text-sm);
+    font-weight: var(--font-medium);
+    color: var(--gray-700);
+}
+
+.tt-form-label.required::after {
+    content: '*';
+    color: var(--error-500);
+    margin-left: var(--space-1);
+}
+
+.tt-form-input {
+    padding: var(--space-3) var(--space-4);
+    font-size: var(--text-sm);
+    color: var(--gray-900);
+    background: white;
+    border: 2px solid var(--gray-200);
+    border-radius: var(--radius-lg);
+    transition: all var(--transition-fast);
+    outline: none;
+}
+
+.tt-form-input:focus {
+    border-color: var(--primary-500);
+    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
+    transform: translateY(-1px);
+}
+
+.tt-form-input:disabled {
+    background: var(--gray-100);
+    color: var(--gray-500);
+    cursor: not-allowed;
+}
+
+.tt-form-input::placeholder {
+    color: var(--gray-400);
+}
+
+/* Card Components */
+.tt-card {
+    background: white;
+    border-radius: var(--radius-2xl);
+    border: 1px solid var(--gray-200);
+    box-shadow: var(--shadow-sm);
+    overflow: hidden;
+    transition: all var(--transition-normal);
+}
+
+.tt-card:hover {
+    box-shadow: var(--shadow-md);
+    border-color: var(--gray-300);
+    transform: translateY(-1px);
+}
+
+.tt-card-header {
+    padding: var(--space-6);
+    border-bottom: 1px solid var(--gray-100);
+    background: var(--gray-50);
+}
+
+.tt-card-content {
+    padding: var(--space-6);
+}
+
+.tt-card-footer {
+    padding: var(--space-4) var(--space-6);
+    border-top: 1px solid var(--gray-100);
+    background: var(--gray-50);
+}
+
+/* Message Components */
+.tt-message {
+    padding: var(--space-4);
+    border-radius: var(--radius-lg);
+    font-size: var(--text-sm);
+    font-weight: var(--font-medium);
+    border: 1px solid transparent;
+    display: flex;
+    align-items: center;
+    gap: var(--space-3);
+}
+
+.tt-message-success {
+    background: var(--success-50);
+    color: var(--success-700);
+    border-color: var(--success-500);
+}
+
+.tt-message-error {
+    background: var(--error-50);
+    color: var(--error-700);
+    border-color: var(--error-500);
+}
+
+.tt-message-warning {
+    background: var(--warning-50);
+    color: var(--warning-700);
+    border-color: var(--warning-500);
+}
+
+.tt-message-info {
+    background: var(--info-50);
+    color: var(--info-700);
+    border-color: var(--info-500);
+}
+
+/* Loading Components */
+.tt-loading {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--space-3);
+    padding: var(--space-8);
+}
+
+.tt-spinner {
+    border: 3px solid var(--gray-200);
+    border-top: 3px solid var(--primary-500);
+    border-radius: var(--radius-full);
+    width: var(--space-6);
+    height: var(--space-6);
+    animation: tt-spin 1s linear infinite;
+}
+
+@keyframes tt-spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+
+/* Mobile Responsiveness */
+@media (max-width: 768px) {
+    .tt-header-content {
+        padding: var(--space-3) var(--space-4);
+        flex-direction: column;
+        align-items: stretch;
+        gap: var(--space-4);
+    }
+    
+    .tt-header-logo {
+        font-size: var(--text-xl);
+        text-align: center;
+    }
+    
+    .tt-header-actions {
+        justify-content: space-between;
+        width: 100%;
+    }
+    
+    .tt-user-details {
+        display: none;
+    }
+    
+    .tt-btn {
+        padding: var(--space-3) var(--space-4);
+        font-size: var(--text-sm);
+    }
+    
+    .tt-btn-lg {
+        padding: var(--space-4) var(--space-6);
+        font-size: var(--text-base);
+    }
+}
+
+@media (max-width: 480px) {
+    .tt-header-logo {
+        font-size: var(--text-lg);
+    }
+    
+    .tt-header-subtitle {
+        font-size: var(--text-xs);
+        text-align: center;
+    }
+    
+    .tt-btn {
+        padding: var(--space-2) var(--space-3);
+        font-size: var(--text-xs);
+    }
+}
+
+/* Special Components */
+
+/* GPS Button Enhanced Mobile Styling */
+.tt-btn-gps {
+    background: var(--gradient-primary);
+    color: white;
+    box-shadow: var(--shadow-md);
+    position: relative;
+    overflow: hidden;
+}
+
+.tt-btn-gps::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -100%;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
+    transition: left 0.5s;
+}
+
+.tt-btn-gps:hover::before {
+    left: 100%;
+}
+
+.tt-btn-gps:hover {
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-lg);
+}
+
+/* Mobile-specific GPS button styling */
+@media (max-width: 768px) {
+    .tt-btn-gps {
+        width: 100%;
+        justify-content: center;
+        min-height: 48px;
+        font-weight: var(--font-semibold);
+        background: var(--gradient-primary);
+        border: none;
+        color: white;
+    }
+    
+    .tt-btn-gps:hover {
+        background: var(--gradient-primary);
+        filter: brightness(1.1);
+    }
+    
+    .tt-btn-gps:active {
+        transform: scale(0.98);
+    }
+}
+
+/* Glassmorphism Login Container */
+.tt-login-container {
+    background: var(--glass-bg);
+    backdrop-filter: var(--glass-blur);
+    border-radius: var(--radius-3xl);
+    border: var(--glass-border);
+    box-shadow: var(--shadow-2xl);
+    padding: var(--space-8);
+    width: 100%;
+    max-width: 420px;
+    animation: tt-slideIn 0.6s ease-out;
+}
+
+@keyframes tt-slideIn {
+    from {
+        opacity: 0;
+        transform: translateY(30px) scale(0.95);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0) scale(1);
+    }
+}
+
+/* Utility Classes */
+.tt-sr-only {
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip: rect(0, 0, 0, 0);
+    white-space: nowrap;
+    border: 0;
+}
+
+.tt-hidden {
+    display: none !important;
+}
+
+.tt-fade-in {
+    animation: tt-fadeIn 0.3s ease-out;
+}
+
+@keyframes tt-fadeIn {
+    from { opacity: 0; transform: translateY(-10px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+/* Custom scrollbar */
+::-webkit-scrollbar {
+    width: 8px;
+}
+
+::-webkit-scrollbar-track {
+    background: var(--gray-100);
+    border-radius: var(--radius-md);
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--gray-400);
+    border-radius: var(--radius-md);
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--primary-500);
+}
+
+/* Focus improvements */
+*:focus-visible {
+    outline: 2px solid var(--primary-500);
+    outline-offset: 2px;
+}

static/index.html

@@ -7,8 +7,8 @@
     <meta http-equiv="Pragma" content="no-cache">
     <meta http-equiv="Expires" content="0">
     <title>TreeTrack - Professional Field Research</title>
+    <link rel="stylesheet" href="/static/css/design-system.css">
     <style>
-        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
         
         :root {
             /* Colors */
@@ -80,163 +80,9 @@
             -moz-osx-font-smoothing: grayscale;
         }
 
-        /* Modern Header */
-        .header {
-            background: white;
-            color: var(--gray-900);
-            position: sticky;
-            top: 0;
-            z-index: 100;
-            border-bottom: 1px solid var(--gray-200);
-            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-        }
-
-        .header-content {
-            max-width: 1400px;
-            margin: 0 auto;
-            padding: var(--space-3) var(--space-4);
-            display: flex;
-            justify-content: space-between;
-            align-items: center;
-            flex-wrap: wrap;
-            gap: var(--space-3);
-        }
-
-        .header-brand {
-            display: flex;
-            flex-direction: column;
-            gap: var(--space-1);
-        }
-
-        .header h1 {
-            font-size: 1.5rem;
-            font-weight: 600;
-            margin: 0;
-            letter-spacing: -0.025em;
-            color: var(--gray-900);
-            display: flex;
-            align-items: center;
-            gap: var(--space-2);
-        }
-        
-
-        .header-subtitle {
-            font-size: 0.75rem;
-            color: var(--gray-600);
-            font-weight: 400;
-        }
-
-        .header-actions {
-            display: flex;
-            align-items: center;
-            gap: var(--space-3);
-        }
-
-        .user-info {
-            display: flex;
-            align-items: center;
-            gap: var(--space-2);
-            padding: var(--space-2) var(--space-3);
-            background: var(--gray-50);
-            border-radius: var(--radius-lg);
-            border: 1px solid var(--gray-200);
-        }
-
-        .user-avatar {
-            width: 28px;
-            height: 28px;
-            border-radius: 50%;
-            background: var(--primary-500);
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            font-weight: 600;
-            font-size: 0.75rem;
-            color: white;
-        }
+        /* Updated header to match design system */
 
-        .user-details {
-            display: flex;
-            flex-direction: column;
-            gap: 0;
-        }
-
-        .user-name {
-            font-size: 0.8125rem;
-            font-weight: 500;
-            color: var(--gray-900);
-        }
-
-        .user-role {
-            font-size: 0.6875rem;
-            color: var(--gray-600);
-            text-transform: capitalize;
-        }
-
-        .btn {
-            display: inline-flex;
-            align-items: center;
-            justify-content: center;
-            gap: var(--space-2);
-            padding: var(--space-2) var(--space-4);
-            font-size: 0.875rem;
-            font-weight: 500;
-            line-height: 1.25;
-            border-radius: var(--radius-md);
-            border: none;
-            cursor: pointer;
-            transition: all 0.15s ease;
-            text-decoration: none;
-            outline: none;
-            position: relative;
-            overflow: hidden;
-        }
-
-        .btn-primary {
-            background: var(--primary-500);
-            color: white;
-        }
-
-        .btn-primary:hover {
-            background: var(--primary-600);
-            transform: translateY(-1px);
-            box-shadow: var(--shadow-md);
-        }
-
-        .btn-secondary {
-            background: var(--gray-100);
-            color: var(--gray-700);
-            border: 1px solid var(--gray-200);
-            font-size: 0.8125rem;
-            padding: var(--space-2) var(--space-3);
-        }
-
-        .btn-secondary:hover {
-            background: var(--gray-200);
-            color: var(--gray-800);
-            transform: translateY(-1px);
-        }
-
-        .btn-outline {
-            background: transparent;
-            color: var(--gray-700);
-            border: 1px solid var(--gray-300);
-        }
-
-        .btn-outline:hover {
-            background: var(--gray-50);
-            border-color: var(--gray-400);
-        }
-
-        .btn-lg {
-            padding: var(--space-3) var(--space-6);
-            font-size: 1rem;
-        }
-
-        .btn-sm {
-            padding: var(--space-1) var(--space-3);
-            font-size: 0.8125rem;
-        }
+        /* Button styles now handled by design system */
 
         /* Main Content */
         .main-container {
@@ -511,12 +357,12 @@
             flex-shrink: 0;
         }
 
-        /* Location buttons redesign */
+        /* Enhanced location button styling with design system */
         .location-buttons {
             display: flex;
             gap: var(--space-3);
             align-items: center;
-            margin-top: var(--space-2);
+            margin-top: var(--space-4);
         }
 
         .location-btn-gps {
@@ -531,46 +377,14 @@
         @media (max-width: 768px) {
             .location-buttons {
                 flex-direction: column;
-                gap: var(--space-3);
-                margin-top: var(--space-4);
-            }
-            
-            .location-btn-gps,
-            .location-btn-map {
-                width: 100%;
-                justify-content: center;
-                min-height: 48px;
-                font-size: 0.875rem;
-                font-weight: 500;
-                padding: var(--space-3) var(--space-4);
-            }
-            
-            .location-btn-gps {
-                background: var(--primary-500);
-                color: white;
-                border: none;
-            }
-            
-            .location-btn-gps:hover {
-                background: var(--primary-600);
+                gap: var(--space-4);
+                margin-top: var(--space-6);
             }
         }
 
         @media (max-width: 480px) {
             .location-buttons {
-                gap: var(--space-2);
-            }
-            
-            .location-btn-gps,
-            .location-btn-map {
-                min-height: 44px;
-                font-size: 0.8125rem;
-                padding: var(--space-2) var(--space-3);
-            }
-            
-            /* Ensure button text is always visible on mobile */
-            .btn-text {
-                display: inline !important;
+                gap: var(--space-3);
             }
         }
 
@@ -1090,34 +904,34 @@
     </script>
 </head>
 <body>
-    <div class="header">
-        <div class="header-content">
-            <div class="header-brand">
-                <h1>TreeTrack</h1>
-                <div class="header-subtitle">Professional Field Research Platform</div>
+    <div class="tt-header">
+        <div class="tt-header-content">
+            <div class="tt-header-brand">
+                <div class="tt-header-logo">TreeTrack</div>
+                <div class="tt-header-subtitle">Professional Field Research Platform</div>
             </div>
-            <div class="header-actions">
-                <div class="user-info" id="userInfo">
-                    <div class="user-avatar" id="userAvatar">U</div>
-                    <div class="user-details">
-                        <div class="user-name" id="userName">Loading...</div>
-                        <div class="user-role" id="userRole">User</div>
+            <div class="tt-header-actions">
+                <div class="tt-user-info" id="userInfo">
+                    <div class="tt-user-avatar" id="userAvatar">U</div>
+                    <div class="tt-user-details">
+                        <div class="tt-user-name" id="userName">Loading...</div>
+                        <div class="tt-user-role" id="userRole">User</div>
                     </div>
                 </div>
-                <a href="/static/map.html" class="btn btn-secondary">View Map</a>
-                <button id="logoutBtn" class="btn btn-secondary">Logout</button>
+                <a href="/static/map.html" class="tt-btn tt-btn-secondary">View Map</a>
+                <button id="logoutBtn" class="tt-btn tt-btn-secondary">Logout</button>
             </div>
         </div>
     </div>
 
     <div class="main-container">
         <div class="content-grid">
-            <div class="card">
-                <div class="card-header">
-                    <h2 class="card-title">Tree Documentation Form</h2>
-                    <p class="card-subtitle">Complete the form below to document tree specimens in the field. All required fields are marked with an asterisk.</p>
+            <div class="tt-card">
+                <div class="tt-card-header">
+                    <h2 class="tt-card-title">Tree Documentation Form</h2>
+                    <p class="tt-card-subtitle">Complete the form below to document tree specimens in the field. All required fields are marked with an asterisk.</p>
                 </div>
-                <div class="card-content">
+                <div class="tt-card-content">
                     <form id="treeForm">
                         <!-- Location Section -->
                         <div class="form-section">
@@ -1139,11 +953,11 @@
                             
                             <div class="form-group">
                                 <div class="location-buttons">
-                                    <button type="button" id="getLocation" class="btn btn-outline location-btn-gps">
-                                        <span class="btn-text">Get GPS Location</span>
+                                    <button type="button" id="getLocation" class="tt-btn tt-btn-gps location-btn-gps">
+                                        <span class="btn-text">📍 Get GPS Location</span>
                                     </button>
-                                    <a href="/static/map.html" class="btn btn-primary location-btn-map">
-                                        <span class="btn-text">Select from Map</span>
+                                    <a href="/static/map.html" class="tt-btn tt-btn-primary location-btn-map">
+                                        <span class="btn-text">🗺️ Select from Map</span>
                                     </a>
                                 </div>
                             </div>
@@ -1273,8 +1087,8 @@
                         </div>
 
                         <div class="form-actions">
-                            <button type="button" id="resetForm" class="btn btn-outline">Reset Form</button>
-                            <button type="submit" class="btn btn-primary btn-lg">Save Tree Record</button>
+                            <button type="button" id="resetForm" class="tt-btn tt-btn-outline">Reset Form</button>
+                            <button type="submit" class="tt-btn tt-btn-primary tt-btn-lg">🌳 Save Tree Record</button>
                         </div>
                     </form>
 
@@ -1282,15 +1096,15 @@
                 </div>
             </div>
 
-            <div class="card">
-                <div class="card-header">
-                    <h3 class="card-title">Recent Trees</h3>
-                    <p class="card-subtitle">Recently documented specimens</p>
+            <div class="tt-card">
+                <div class="tt-card-header">
+                    <h3 class="tt-card-title">Recent Trees</h3>
+                    <p class="tt-card-subtitle">Recently documented specimens</p>
                 </div>
-                <div class="card-content">
+                <div class="tt-card-content">
                     <div id="treeList" class="tree-list">
-                        <div class="loading">
-                            <div class="spinner"></div>
+                        <div class="tt-loading">
+                            <div class="tt-spinner"></div>
                             Loading trees...
                         </div>
                     </div>

static/login.html

@@ -4,134 +4,57 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>TreeTrack Login - Field Research Access</title>
+    <link rel="stylesheet" href="/static/css/design-system.css">
     <style>
-        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
-        
-        * {
-            margin: 0;
-            padding: 0;
-            box-sizing: border-box;
-        }
-
         body {
-            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            background: var(--gradient-forest);
             min-height: 100vh;
             display: flex;
             align-items: center;
             justify-content: center;
-            padding: 1rem;
-        }
-
-        .login-container {
-            background: rgba(255, 255, 255, 0.95);
-            backdrop-filter: blur(20px);
-            border-radius: 24px;
-            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
-            border: 1px solid rgba(255, 255, 255, 0.2);
-            width: 100%;
-            max-width: 400px;
-            padding: 2.5rem;
-            animation: slideIn 0.6s ease-out;
-        }
-
-        @keyframes slideIn {
-            from {
-                opacity: 0;
-                transform: translateY(30px) scale(0.95);
-            }
-            to {
-                opacity: 1;
-                transform: translateY(0) scale(1);
-            }
+            padding: var(--space-4);
         }
 
         .logo-section {
             text-align: center;
-            margin-bottom: 2rem;
+            margin-bottom: var(--space-8);
         }
 
         .logo {
-            font-size: 2.5rem;
-            font-weight: 700;
-            background: linear-gradient(135deg, #1e40af, #3b82f6);
-            -webkit-background-clip: text;
-            -webkit-text-fill-color: transparent;
-            background-clip: text;
-            margin-bottom: 0.5rem;
+            font-size: var(--text-4xl);
+            font-weight: var(--font-bold);
+            color: var(--primary-600);
+            margin-bottom: var(--space-2);
             letter-spacing: -0.02em;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            gap: var(--space-2);
         }
 
-        .logo-subtitle {
-            color: #6b7280;
-            font-size: 0.875rem;
-            font-weight: 500;
+        .logo::before {
+            content: '🌳';
+            font-size: var(--text-5xl);
         }
 
-        .login-form {
-            display: flex;
-            flex-direction: column;
-            gap: 1.5rem;
+        .logo-subtitle {
+            color: var(--gray-600);
+            font-size: var(--text-sm);
+            font-weight: var(--font-medium);
         }
 
-        .form-group {
+        .login-form {
             display: flex;
             flex-direction: column;
-            gap: 0.5rem;
-        }
-
-        .form-label {
-            font-weight: 600;
-            color: #374151;
-            font-size: 0.875rem;
-        }
-
-        .form-input {
-            padding: 0.875rem 1rem;
-            border: 2px solid #e5e7eb;
-            border-radius: 12px;
-            font-size: 1rem;
-            transition: all 0.2s ease;
-            background: #ffffff;
-            outline: none;
-        }
-
-        .form-input:focus {
-            border-color: #3b82f6;
-            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
-            transform: scale(1.02);
+            gap: var(--space-6);
         }
 
         .login-button {
-            background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
-            color: white;
-            border: none;
-            padding: 1rem;
-            border-radius: 12px;
-            font-size: 1rem;
-            font-weight: 600;
-            cursor: pointer;
-            transition: all 0.3s ease;
-            margin-top: 1rem;
+            margin-top: var(--space-4);
             position: relative;
             overflow: hidden;
         }
 
-        .login-button:hover {
-            transform: translateY(-2px);
-            box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
-        }
-
-        .login-button:active {
-            transform: translateY(0);
-        }
-
-        .login-button:disabled {
-            opacity: 0.7;
-            cursor: not-allowed;
-            transform: none;
-        }
-
         .login-button.loading::after {
             content: '';
             position: absolute;
@@ -143,134 +66,129 @@
             border: 2px solid transparent;
             border-top: 2px solid #ffffff;
             border-radius: 50%;
-            animation: spin 1s linear infinite;
-        }
-
-        @keyframes spin {
-            0% { transform: rotate(0deg); }
-            100% { transform: rotate(360deg); }
-        }
-
-        .message {
-            padding: 1rem;
-            border-radius: 12px;
-            margin-bottom: 1.5rem;
-            font-size: 0.875rem;
-            font-weight: 500;
-            text-align: center;
-            animation: fadeIn 0.3s ease;
-        }
-
-        @keyframes fadeIn {
-            from { opacity: 0; transform: translateY(-10px); }
-            to { opacity: 1; transform: translateY(0); }
-        }
-
-        .message.error {
-            background: #fef2f2;
-            color: #dc2626;
-            border: 1px solid #fecaca;
-        }
-
-        .message.success {
-            background: #f0fdf4;
-            color: #16a34a;
-            border: 1px solid #bbf7d0;
+            animation: tt-spin 1s linear infinite;
         }
 
         .demo-accounts {
-            margin-top: 2rem;
-            padding: 1.5rem;
-            background: rgba(59, 130, 246, 0.05);
-            border: 1px solid rgba(59, 130, 246, 0.1);
-            border-radius: 16px;
+            margin-top: var(--space-8);
+            padding: var(--space-6);
+            background: rgba(34, 197, 94, 0.05);
+            border: 1px solid rgba(34, 197, 94, 0.1);
+            border-radius: var(--radius-2xl);
         }
 
         .demo-title {
-            font-size: 0.875rem;
-            font-weight: 600;
-            color: #1e40af;
-            margin-bottom: 1rem;
+            font-size: var(--text-sm);
+            font-weight: var(--font-semibold);
+            color: var(--primary-700);
+            margin-bottom: var(--space-4);
             text-align: center;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            gap: var(--space-2);
+        }
+
+        .demo-title::before {
+            content: '🔐';
         }
 
         .account-list {
             display: flex;
             flex-direction: column;
-            gap: 0.75rem;
+            gap: var(--space-3);
         }
 
         .account-item {
-            background: rgba(255, 255, 255, 0.7);
-            padding: 0.75rem;
-            border-radius: 8px;
-            font-size: 0.75rem;
+            background: white;
+            padding: var(--space-4);
+            border-radius: var(--radius-lg);
+            font-size: var(--text-sm);
             cursor: pointer;
-            transition: all 0.2s ease;
-            border: 1px solid rgba(59, 130, 246, 0.1);
+            transition: all var(--transition-normal);
+            border: 1px solid var(--gray-200);
+            box-shadow: var(--shadow-sm);
         }
 
         .account-item:hover {
-            background: rgba(255, 255, 255, 0.9);
-            transform: translateY(-1px);
+            background: var(--primary-50);
+            border-color: var(--primary-300);
+            transform: translateY(-2px);
+            box-shadow: var(--shadow-md);
         }
 
         .account-role {
-            font-weight: 600;
-            color: #1e40af;
+            font-weight: var(--font-semibold);
+            color: var(--primary-700);
+            margin-bottom: var(--space-1);
         }
 
         .account-username {
-            color: #6b7280;
-            margin-top: 0.25rem;
+            color: var(--gray-600);
+            font-size: var(--text-xs);
+        }
+
+        .security-notice {
+            margin-top: var(--space-4);
+            padding: var(--space-4);
+            background: var(--success-50);
+            border: 1px solid var(--success-200);
+            border-radius: var(--radius-lg);
+            font-size: var(--text-xs);
+            color: var(--success-700);
+        }
+
+        .security-notice::before {
+            content: '✅';
+            margin-right: var(--space-2);
         }
 
         .footer {
             text-align: center;
-            margin-top: 2rem;
-            color: #9ca3af;
-            font-size: 0.75rem;
+            margin-top: var(--space-8);
+            color: var(--gray-500);
+            font-size: var(--text-xs);
         }
 
         @media (max-width: 480px) {
-            .login-container {
-                padding: 2rem 1.5rem;
-                margin: 0 1rem;
+            .tt-login-container {
+                padding: var(--space-6) var(--space-4);
+                margin: 0 var(--space-4);
             }
 
             .logo {
-                font-size: 2rem;
+                font-size: var(--text-3xl);
             }
         }
     </style>
 </head>
 <body>
-    <div class="login-container">
+    <div class="tt-login-container">
         <div class="logo-section">
-            <div class="logo">🌳 TreeTrack</div>
+            <div class="logo">TreeTrack</div>
             <div class="logo-subtitle">Secure Field Research Access</div>
         </div>
 
         <form class="login-form" id="loginForm">
-            <div id="message" class="message" style="display: none;"></div>
+            <div id="message" class="tt-message" style="display: none;"></div>
 
-            <div class="form-group">
-                <label class="form-label" for="username">Username</label>
-                <input class="form-input" type="text" id="username" name="username" required autocomplete="username">
+            <div class="tt-form-group">
+                <label class="tt-form-label" for="username">Username</label>
+                <input class="tt-form-input" type="text" id="username" name="username" required autocomplete="username">
             </div>
 
-            <div class="form-group">
-                <label class="form-label" for="password">Password</label>
-                <input class="form-input" type="password" id="password" name="password" required autocomplete="current-password">
+            <div class="tt-form-group">
+                <label class="tt-form-label" for="password">Password</label>
+                <input class="tt-form-input" type="password" id="password" name="password" required autocomplete="current-password">
             </div>
 
-            <button class="login-button" type="submit" id="loginButton">
+            <button class="tt-btn tt-btn-primary tt-btn-lg login-button" type="submit" id="loginButton">
                 <span id="buttonText">Sign In to TreeTrack</span>
             </button>
         </form>
 
         <div class="demo-accounts">
-            <div class="demo-title">🔐 Available Accounts</div>
+            <div class="demo-title">Available Accounts</div>
             <div class="account-list">
                 <div class="account-item" onclick="fillCredentials('aalekh', event)">
                     <div class="account-role">Aalekh (Admin)</div>
@@ -289,8 +207,8 @@
                     <div class="account-username">Tree research & documentation</div>
                 </div>
             </div>
-            <div style="margin-top: 1rem; padding: 0.75rem; background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.3); border-radius: 8px; font-size: 0.75rem; color: #166534;">
-                ✅ <strong>Secure Authentication:</strong> All passwords are configured via environment variables for maximum security.
+            <div class="security-notice">
+                <strong>Secure Authentication:</strong> All passwords are configured via environment variables for maximum security.
             </div>
         </div>
 
@@ -327,7 +245,7 @@
         function showMessage(message, type = 'error') {
             const messageEl = document.getElementById('message');
             messageEl.textContent = message;
-            messageEl.className = `message ${type}`;
+            messageEl.className = `tt-message tt-message-${type} tt-fade-in`;
             messageEl.style.display = 'block';
             
             if (type === 'success') {

static/map.html

@@ -10,9 +10,9 @@
     
     <!-- Leaflet CSS -->
     <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css" />
+    <link rel="stylesheet" href="/static/css/design-system.css">
     
     <style>
-        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
         
         :root {
             /* Colors */
@@ -92,66 +92,74 @@
             flex-direction: column;
         }
 
-        /* Header */
-        .header {
-            background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
-            color: white;
-            z-index: 1000;
-            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
-            backdrop-filter: blur(12px);
-        }
-
-        .header-content {
-            padding: var(--space-4) var(--space-6);
-            display: flex;
-            justify-content: space-between;
-            align-items: center;
-            flex-wrap: wrap;
-            gap: var(--space-4);
-            max-width: none;
+        /* Map-specific header styling */
+        .map-header {
+            background: var(--gradient-forest);
+            position: relative;
+            overflow: hidden;
         }
-
-        .header-brand {
-            display: flex;
-            align-items: center;
-            gap: var(--space-3);
+        
+        .map-header::before {
+            content: '';
+            position: absolute;
+            top: 0;
+            left: 0;
+            right: 0;
+            bottom: 0;
+            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 20"><defs><linearGradient id="wave" x1="0" y1="0" x2="1" y2="0"><stop offset="0%" style="stop-color:rgba(255,255,255,0.1)"/><stop offset="50%" style="stop-color:rgba(255,255,255,0.05)"/><stop offset="100%" style="stop-color:rgba(255,255,255,0.1)"/></linearGradient></defs><path d="M0,10 Q25,0 50,10 T100,10 V20 H0 Z" fill="url(%23wave)"/></svg>') repeat-x;
+            background-size: 200px 20px;
+            background-position: bottom;
+            animation: wave 8s linear infinite;
         }
-
-        .logo {
-            font-size: 1.5rem;
-            font-weight: 700;
-            letter-spacing: -0.025em;
+        
+        @keyframes wave {
+            0% { background-position-x: 0; }
+            100% { background-position-x: 200px; }
         }
 
         .header-stats {
             display: flex;
             align-items: center;
-            gap: var(--space-6);
+            gap: var(--space-4);
         }
 
         .stat-item {
             display: flex;
             align-items: center;
             gap: var(--space-2);
-            padding: var(--space-2) var(--space-4);
-            background: rgba(255, 255, 255, 0.1);
-            border-radius: var(--radius-lg);
-            border: 1px solid rgba(255, 255, 255, 0.2);
-            backdrop-filter: blur(8px);
+            padding: var(--space-3) var(--space-4);
+            background: var(--glass-bg-dark);
+            border-radius: var(--radius-xl);
+            border: var(--glass-border);
+            backdrop-filter: var(--glass-blur);
+            transition: all var(--transition-normal);
+        }
+        
+        .stat-item:hover {
+            background: rgba(255, 255, 255, 0.2);
+            transform: translateY(-1px);
         }
 
         .stat-icon {
-            font-size: 1.125rem;
+            font-size: var(--text-lg);
+            width: 24px;
+            height: 24px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            background: rgba(255, 255, 255, 0.2);
+            border-radius: var(--radius-md);
         }
 
         .stat-text {
-            font-size: 0.875rem;
-            font-weight: 500;
+            font-size: var(--text-sm);
+            font-weight: var(--font-medium);
+            opacity: 0.9;
         }
 
         .stat-number {
-            font-size: 1rem;
-            font-weight: 700;
+            font-size: var(--text-lg);
+            font-weight: var(--font-bold);
             color: var(--primary-100);
         }
 
@@ -161,88 +169,12 @@
             gap: var(--space-3);
         }
 
-        .user-info {
-            display: flex;
-            align-items: center;
-            gap: var(--space-3);
-            padding: var(--space-2) var(--space-4);
-            background: rgba(255, 255, 255, 0.1);
-            border-radius: var(--radius-xl);
-            border: 1px solid rgba(255, 255, 255, 0.2);
-            backdrop-filter: blur(8px);
-        }
-
-        .user-avatar {
-            width: 32px;
-            height: 32px;
-            border-radius: 50%;
-            background: var(--primary-500);
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            font-weight: 600;
-            font-size: 0.875rem;
-        }
-
-        .user-details {
-            display: flex;
-            flex-direction: column;
-        }
-
-        .user-name {
-            font-size: 0.875rem;
-            font-weight: 600;
-        }
-
-        .user-role {
-            font-size: 0.75rem;
-            opacity: 0.8;
-        }
-
-        .btn {
-            display: inline-flex;
-            align-items: center;
-            justify-content: center;
-            gap: var(--space-2);
-            padding: var(--space-2) var(--space-4);
-            font-size: 0.875rem;
-            font-weight: 500;
-            line-height: 1.25;
-            border-radius: var(--radius-md);
-            border: none;
-            cursor: pointer;
-            transition: all 0.15s ease;
-            text-decoration: none;
-            outline: none;
-            white-space: nowrap;
-        }
-
-        .btn-primary {
-            background: var(--primary-500);
-            color: white;
-        }
-
-        .btn-primary:hover {
-            background: var(--primary-600);
-            transform: translateY(-1px);
-            box-shadow: var(--shadow-md);
-        }
-
-        .btn-secondary {
-            background: rgba(255, 255, 255, 0.1);
-            color: white;
-            border: 1px solid rgba(255, 255, 255, 0.2);
+        /* Map-specific adjustments for user info */
+        .map-user-info {
+            padding: var(--space-3) var(--space-5);
         }
 
-        .btn-secondary:hover {
-            background: rgba(255, 255, 255, 0.2);
-            transform: translateY(-1px);
-        }
-
-        .btn-sm {
-            padding: var(--space-1) var(--space-3);
-            font-size: 0.8125rem;
-        }
+        /* Button styles handled by design system */
 
         /* Map Container */
         .map-container {
@@ -770,35 +702,36 @@
 <body>
     <div class="app-container">
         <!-- Header -->
-        <div class="header">
-            <div class="header-content">
-                <div class="header-brand">
-                    <div class="logo">TreeTrack Map</div>
+        <div class="tt-header map-header">
+            <div class="tt-header-content">
+                <div class="tt-header-brand">
+                    <div class="tt-header-logo">TreeTrack Map</div>
+                    <div class="tt-header-subtitle">Interactive Field Research View</div>
                 </div>
                 
                 <div class="header-stats">
                     <div class="stat-item">
-                        <span class="stat-icon">T</span>
+                        <span class="stat-icon">🌳</span>
                         <span class="stat-text">Trees:</span>
                         <span class="stat-number" id="treeCount">0</span>
                     </div>
                     <div class="stat-item">
-                        <span class="stat-icon">S</span>
+                        <span class="stat-icon">📍</span>
                         <span class="stat-text">Selected:</span>
                         <span class="stat-number" id="selectedCount">0</span>
                     </div>
                 </div>
                 
-                <div class="header-actions">
-                    <div class="user-info" id="userInfo">
-                        <div class="user-avatar" id="userAvatar">U</div>
-                        <div class="user-details">
-                            <div class="user-name" id="userName">Loading...</div>
-                            <div class="user-role" id="userRole">User</div>
+                <div class="tt-header-actions">
+                    <div class="tt-user-info map-user-info" id="userInfo">
+                        <div class="tt-user-avatar" id="userAvatar">U</div>
+                        <div class="tt-user-details">
+                            <div class="tt-user-name" id="userName">Loading...</div>
+                            <div class="tt-user-role" id="userRole">User</div>
                         </div>
                     </div>
-                    <a href="/" class="btn btn-secondary">Add Tree</a>
-                    <button id="logoutBtn" class="btn btn-secondary">Logout</button>
+                    <a href="/" class="tt-btn tt-btn-secondary">🌱 Add Tree</a>
+                    <button id="logoutBtn" class="tt-btn tt-btn-secondary">Logout</button>
                 </div>
             </div>
         </div>
@@ -847,11 +780,11 @@
                         </div>
                     </div>
                     <div class="location-actions">
-                        <button id="useLocationBtn" class="btn btn-primary">
-                            Use This Location
+                        <button id="useLocationBtn" class="tt-btn tt-btn-primary">
+                            ✅ Use This Location
                         </button>
-                        <button id="cancelBtn" class="btn btn-secondary">
-                            Cancel
+                        <button id="cancelBtn" class="tt-btn tt-btn-secondary">
+                            ❌ Cancel
                         </button>
                     </div>
                 </div>